Multiple IP bindings on bonded network interface

[Monty wig]

I have kind of similar issue. I am trying to assign multiple IP address to a
machine with a single NIC and I did follow the instructions from RH. Below
are my network files from /etc/sysconfig/network-scripts...

ifcfg-eth0
============
DEVICE=eth0
NM_CONTROLLED=yes
ONBOOT=yes
HWADDR=00:1C:25:70:06:89
TYPE=Ethernet
BOOTPROTO=none
DEFROUTE=yes
PEERDNS=no
IPADDR=192.168.1.103
NETMASK=255.255.255.0
PEERROUTES=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
NAME="System eth0"
USERCTL=no


ifcfg-eth0:1
==============
DEVICE=eth0:1
ONPARENT=yes
BOOTPROTO=static
IPADDR=192.168.1.119
NETMASK=255.255.255.0
TYPE=Ethernet
IPV6INIT=no
USERCTL=no

Now when I try to bring up the NIC using "ifup eth0:1" - It brings eth0:1 up
but brings down eth0. Basically it brings only one of them at a time and no
matter which IP is up, "ip addr show" output shows only eth0 even if IP of
eth0:1 is up!! I am on RH6...Has anyone seen this behavior?

Thanks
Monty


On Fri, Oct 15, 2010 at 5:38 AM, Euan de Boer
<euan.deboer at elementum.co.nz>wrote:

> Hi,
>
> Sorry if this posts twice (first posting seems stuck awaiting admin
> approval).
>
> I am looking at binding 64 IP addresses to a Redhat 5 server with dual
> NIC's.  I have followed this guide:
>
> http://www.xenocafe.com/tutorials/linux/redhat/bind_multiple_ip_addresses_to_single_nic/index.phpand
> am able to successfully bind the IP's to the eth0 and eth1, however I
> would like to be able to bind them to my bonded interface bond0 to ensure
> redundancy.
>
> My bond0 is as follows:
>
> # bonded interface for production
> DEVICE=bond0
> BOOTPROTO=static
> ONBOOT=yes
> IPADDR=192.168.1.1
> NETMASK=255.255.255.0
> BONDING_OPTS="mode=4 miimon=10"
>
> When I create a bond0:0 containing one of the additional IP's like this:
>
> DEVICE=bond0:0
> BOOTPROTO=static
> ONBOOT=yes
>
> IPADDR=192.168.1.2
>
>  NETMASK=255.255.255.0
>
>
> and restart networking the interface does not come up.  Manually attempting
> to bring the interface up with if config gives me the following error:
>
> ifconfig bond0:0 up
> SIOCSIFFLAGS: Cannot assign requested address
>
> bond0 itself is completely working, however I just can't seem to add the
> additional aliases with my extra IP addresses.
>
> Does anyone know if what I am trying to do is supported, and if it is,
> where
> I am going wrong?
>
> I have googled this extensively today and have not found anything that
> explains if this is actually possible, or how to do it, so any ideas are
> very welcome!
>
> Thanks,
>
> Euan.
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